You also need increased security to protect your organization from cyber threats. Your users expect fast access to business applications from any location, on any device – whether working with a browser, Eclipse framework or 3270 interface.
The console is alive (i.e., imagine the OS/2 laptop is running its terminal software.) In Unix terminology the mainframe is talking back in single user console mode.Home Solutions MACRO 4 Solutions Solutions Enterprise Information Management MACRO 4 Enterprise Information Management Enterprise Information Management Customer Communications Management Information Governance MACRO 4 Information Governance Information Governance Regulatory compliance Blockchain-ready enterprise information management Archiving Data protection Customer and employee self-service Solutions for SAP ® MACRO 4 Solutions for SAP ® Solutions for SAP ® Multi channel Communications Order to Cash Automation Legacy Application Decommissioning Document Archiving, Data Archiving and SAP ® ILM Output Management Health Check Service for SAP ® Order to Cash Automation Data Management MACRO 4 Data Management Data Management Legacy Application Decommissioning SAP ® Information Lifecycle Management and Archiving Data Manipulation for z/OS Performance Management MACRO 4 Performance Management Performance Management IT Business Intelligence Mainframe Application Performance Management Cross-platform Java Application Performance Management IBM i Performance Management IBM i Disk Management Fault Analysis and Testing MACRO 4 Fault Analysis and Testing Fault Analysis and Testing Fault Analysis for z/OS Applications Interactive Testing and Debugging for z/OS Applications Test Data Creation for z/OS Mainframe Modernization Session Management Products MACRO 4 Products Products AUTOMON ® for MVS Columbus Suite Columbus Accounting Columbus Central Columbus DoXite Columbus DW Columbus OM Columbus Z Columbus Z REFLECT DATABACK DumpMaster/MVS ExpeTune ExpeTune/DB FreezeFrame InSync ® InSync ® DBA InSync ® for IMS Online Libra Logout M4SlickEdit M4Workbench SUPERMON ® for Java Synchro TraceMaster TraceMaster CodeTrack Tubes for z/OS Tubes for z/VSE and z/VM VSAMLite VSAMTune VTAMPrint Words Online for z/OS z/Explorer Services MACRO 4 Services Services Training Professional Services Blog News and Events MACRO 4 News and Events News and Events News Industry articles Events Resources About MACRO 4 About About Corry Hong, Founder and CEO, UNICOM Global Contact Us Careers Support Partners All counters are zero because the machine has not yet been told to boot.
so we already have a few layers of virtualisation before introducing Hercules! PSW means "Program Status Word", known as "Instruction Pointer" on some other architectures.
On real z-Series machines (successor to the 390 series) it is an IBM Thinkpad laptop running OS/2 and dedicated software that makes it look like an old-fashioned 9672 terminal. The screenshot below shows Hercules' emulation of the Hardware Management Console (HMC) on an IBM S/390 mainframe. There is also a large community of current and former mainframe operators, as well as those with no prior experience, who use Hercules and the public domain IBM operating systems as a hobby and for learning purposes.
One of the prime uses for Hercules is as a cheap way of getting multiprocessor and 64-bit environments for development purposes to verify that code is portable and works with SMP and is 64-bit clean. Other distributions with mainframe ports include Red Hat Enterprise Linux, Debian Linux, and CentOS. Several Linux distributions include ports for S/390 and some also include a separate zSeries port, the most popular being SUSE LINUX Enterprise Server. Linux/390 runs well on Hercules, and much development work is done on the emulator.
Newer operating systems, such as OS/390, z/OS, VSE, VM/ESA, and z/VM will run, but cannot legally be used except in very limited circumstances for license reasons. The IBM public domain operating systems OS/360, DOS, DOS/VS, MVS, VM/CMS, and TSS/370 run under the emulator. It emulates the CPU and peripheral device hardware only the operating system has to be supplied by the user.
It runs under Linux, Windows and Mac OS X and is released under the free software license QPL. The Hercules emulator is an emulator for the IBM mainframe hardware: the System/370, System/390 and zSeries computers.